Dental curing light adapted to emit light at a desired angle
A dental device configured for curing light-curable compounds includes an extension portion conforming along a first axis, and a handle portion conforming along an intersecting axis, the axes forming an obtuse angle. An LED light source is disposed on the extension portion, and faces away from the obtuse angle, though rotatable embodiments allow for other configurations. The LED light source may include transilluminating lenses for filtering out undesired radiant energy. The dental device may include finger controls for controlling the emission of light from the LED light source of the dental device. A remote power supply connected with the dental device provides power to the dental device without increasing the size or weight of the dental device.
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1. The Field of the Invention
The present invention relates generally to the field of light-curing devices and, more specifically, to handheld dental light-curing devices incorporating one or more light sources.
2. The Relevant Technology
In the field of dentistry, dental cavities are often filled and/or sealed with photosensitive compounds that are cured when they are exposed to radiant energy, such as visible light. These compounds, commonly referred to as light curable compounds, are placed within dental preparations or onto dental surfaces where they are subsequently irradiated by a light curing dental device. Many light-curing devices are configured with a fiber optic light guide for directing light from a light source into a patient's mouth. The light source may comprise, for example, a lamp, a halogen bulb or a light-emitting diode (LED). One end of the light guide is placed close to the light source so that the light emitted from the light source will be directed into the light guide.
Existing light curing devices are configured to emit adequate light from one or more light sources into a patient's mouth and in a manner that is suitable to cure the light curable compounds. Typically, at least a portion of the light curing device is inserted within the patient's mouth proximate to a dental preparation to help ensure the light is dispersed at the desired location.
Existing light-curing devices, however, provide the operator a somewhat limited range of access to dental preparations within the patient's mouth. Some dental curing lights are rather bulky in size, which makes such devices difficult to insert into hard-to-reach places within a patient's mouth. Others are shaped to facilitate access to some of a patient's teeth but, due to the multiplicity of tooth surfaces and sides that may need to be illuminated, there is currently no design that can facilitate easy access to all or a substantial number of such surfaces and sides. Failure to adequately or evenly illuminate a composite resin filling material can result in improper curing and, possibly, complete or partial failure of the composite filling.
Accordingly, there is an ongoing need in the art for improved dental curing lights that are configured so as to facilitate access to a greater number of surfaces or sides of a patient's teeth.
SUMMARY OF PRESENTLY PREFERRED EMBODIMENTSBriefly summarized, preferred embodiments of the present invention describe improved dental curing lights that are designed to facilitate access to the sides and surfaces of a patient's teeth during a dental procedure. The invention provides ergonomic design and/or adjustability to accomplish this benefit.
In one aspect of the invention, a dental curing light is provided that is ergonomically designed so that a dental practitioner can hold the curing light in a comfortable fashion while accessing a desired tooth surface or side during a dental procedure. According to one embodiment, a dental curing light is provided that comprises a body having a handle portion that can be gripped or held by the dental practitioner and an extension portion that includes a light source and that is offset at a predetermined angle relative to the handle portion so as to facilitate placement of the light source near a tooth surface or side being illuminated.
In a preferred embodiment, the dental curing light is sized and configured so as to approximate a standard dental hand piece. In this embodiment, the extension portion is offset from the handle portion by a standard contra angle and the light source emits light from a side of the extension portion (e.g., the light source emits light approximately perpendicular to the extension portion). In an alternative embodiment, the angle at which the extension portion is offset from the handle portion may be adjustable.
In another aspect of the invention, which may be in addition to or instead of the aforementioned ergonomic design, a dental curing light is provided that has a light emitting portion that is rotatable relative to a handle portion in order to emit light at different rotational angles relative to the handle portion. In a preferred embodiment, the light emitting portion (e.g., the extension portion) will be locked or restrained from rotating relative to the handle portion during a dental procedure by rotation restraint means (e.g., a mechanical locking device or friction fit). In this way, the light emitting portion is restrained from undesirably rotating out of the desired rotational angle when in use.
The dental curing light may comprise any known light source, or any light source that may be developed in the future, that is suitable for emitting a desired quantity and quality of light. According to one embodiment, the light source comprises at least one LED or LED array. LEDs have the advantage of emitting intense light while using less power compared to other light sources currently available in the art. Not only are LEDs more efficient from the standpoint of power consumption but they generate less heat, thereby increasing comfort for both the patient and dental practitioner.
The dental curing light may further comprise control means that provide desired functionality, such as the duration and intensity of the light emitted by the curing light. The control on the dental device. The control means may include, for example, one or more buttons within the handle portion.
These and other benefits, advantages and features of the present invention will become more fully apparent from the following description and appended claims, or may be learned by the practice of the invention as set forth hereinafter.
In order that the manner in which the above recited and other benefits, advantages and features of the invention are obtained, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
A detailed description of the inventive dental device will now be provided with specific reference to figures illustrating preferred embodiments. It will be appreciated that like structures will be provided with like reference designations.
As shown in
As shown in
In addition, because a user can rotate extension portion 200 with respect to handle portion 210, a user can rotate the light source in or out of the contra angle position. For example,
The degree a user may rotate the respective portions may be governed by mating points between extension portion 600 and gripping portion 610, such as mating portions 612 and 617. As in the previous embodiments, one will appreciate that such mating portions provide a steady, non-slipping rotation capability. Accordingly, a manufacturer may configure the device to allow extension portion 600 rotation from the gripping portion 610 by 45 degrees, 90 degrees, 100 degrees, 180 degrees, etc. The ability to rotate the portions, of course, allows the user of the device to conform the device to a variety of different positions. This, in conjunction with the ability to form a contra angle, also allows the operator a greater ease of use in reaching, for example, light curable dental compounds in certain curved portions of a patient's mouth. Rotation capability allows greater flexibility for use by left and right handed operators to access the same angles alike.
With respect to the swivel mechanism of
In summary, the dental devices of the invention are configured to allow at least one contra angle formation for the light source, so that the light source may access the maximum positions within a patient's mouth, while minimizing prior ergonomic disadvantages. The devices are configurable with any number of electrical connections, and, in some cases, any number of rotation mechanisms. Such rotation mechanisms may include the above, and may also include other steady rotation mechanisms known in the art such as those employing friction. In addition, the devices are configured to have the same general shape, size and weight of conventional dental hand pieces, thereby enabling the dental devices to be securely held within the holders or holding slots of conventional dental hand piece holding trays. The dental devices of the invention may also include a remotely located power supply, which generally eliminates the need for such items as battery packs and fiber optic light guides, thereby reducing the overall weight and bulk of the dental devices.
It will be appreciated that the present claimed invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative, not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims
1. A dental curing light for use in photo curing light-curable dental compounds, comprising:
- a handle portion extending at least approximately along a first longitudinal axis;
- an extension portion extending at least approximately along a second longitudinal axis so that the second longitudinal axis is laterally offset by a predetermined angle relative to the first longitudinal axis, and wherein the extension portion is rotatably connected and rotatably adjustable relative to the handle portion in order to selectively alter the predetermined angle; and
- a light source disposed on a side of the extension portion so that light is emitted laterally from the extension portion when the curing light is in use,
- wherein by rotating the extension portion to alter the predetermined angle an angle is selected to facilitate placement of the light source near at least one tooth to be treated.
2. A dental curing light as defined in claim 1, wherein the handle portion and extension portion are configured so as to approximate the size and shape of a standard dental hand piece.
3. A dental curing light as defined in claim 1, wherein the handle portion is substantially linear.
4. A dental curing light as defined in claim 3, the handle portion further comprising one or more controls on a top surface of the handle portion.
5. A dental curing light as defined in claim 4, wherein a portion of a bottom surface of the handle portion is curved so as to provide a comfortable grip.
6. A dental curing light as defined in claim 1, wherein the extension portion is substantially linear.
7. A dental curing light as defined in claim 1, wherein the predetermined angle approximates the contra angle of a standard dental hand piece.
8. A dental curing light as defined in claim 7, wherein the predetermined angle is about 17.5°.
9. A dental curing light as defined in claim 7, wherein the light source is positioned so as to emit light approximately perpendicular to the extension portion.
10. A dental curing light as defined in claim 1, wherein the extension portion is movable relative to the handle portion in order to selectively position the extension portion in one of a plurality of different conformations relative to the handle portion in order to alter the predetermined angle.
11. A dental curing light as defined in claim 1, wherein the extension portion is positionable in at least one conformation relative to the handle portion in order for the light source to emit light at an obtuse angle relative to the first longitudinal axis.
12. A dental curing light as defined in claim 1, wherein the extension portion is positionable in at least one conformation relative to the handle portion in order for the light source to emit light at an acute angle relative to the first longitudinal axis.
13. A dental curing light as defined in claim 1, wherein the extension portion is laterally adjustable relative to the handle portion.
14. A dental curing light as defined in claim 1, the dental curing light further comprising rotation restraint means for maintaining the extension portion at a desired rotational angle relative to the handle portion during use.
15. A dental curing light as defined in claim 14, the rotation restraint means comprising at least one of a mechanical locking device, one or more locking pins that fit into one or more corresponding recesses, or a friction fit.
16. A dental curing light as defined in claim 1, the light source comprising at least one LED or LED array.
17. A dental curing light for use in photo curing light-curable dental compounds, comprising:
- a handle portion extending at least approximately along a first longitudinal axis;
- an extension portion extending at least approximately along a second longitudinal axis so that the second longitudinal axis is laterally offset by a predetermined angle relative to the first longitudinal axis, the predetermined angle comprising an angle at which light may be emitted relative to the handle portion, and the predetermined angle approximating the contra angle of a standard dental hand piece;
- a light source disposed on a side of the extension portion so that light is emitted laterally from the extension portion when the curing light is in use, and
- wherein at least one of the extension portion and light source is rotatably connected and rotatably adjustable relative to the handle portion in order to selectively alter the predetermined angle at which light may be emitted.
18. A dental curing light as defined in claim 17, at least one of the extension portion and light source is positionable in at least one conformation relative to the handle portion in order for the light source to emit light at an acute angle relative to the handle portion.
19. A dental curing light as defined in claim 18, the light source comprising at least one LED or LED array.
20. A dental curing light for use in photo curing light-curable dental compounds, comprising:
- a handle portion extending at least approximately along a first longitudinal axis;
- an extension portion extending at least approximately along a second longitudinal axis that is either co-linear or parallel with the first longitudinal axis so that the extension portion is substantially linear with the handle portion;
- a light source disposed on a side of the extension portion so that light is emitted laterally from the extension portion when the curing light is in use, and
- wherein the light source is connected to the extension portion at a first swivel point that permits the light source to be rotatably adjusted relative to the handle portion.
21. A dental curing light as defined in claim 20, wherein the light source is connected to the extension portion at a second swivel point that permits the light source to swivel longitudinally up and down so as to permit the light source to be adjusted to emit light at any of a plurality of angles, at least one of which comprises an angle that approximates the contra angle of a standard dental hand piece when in use.
22. A dental curing light as defined in claim 20, the light source comprising at least one LED or LED array.
23. A dental curing light for use in photo curing light-curable dental compounds, comprising:
- a handle portion extending at least approximately along a first longitudinal axis;
- an extension portion extending at least approximately along a second longitudinal axis and being rotatably connected to the handle portion in a manner so that the extension portion can be selectively rotated relative to the handle portion without being completely detached from the handle portion;
- a light source disposed at an end of the extension portion distal to the handle portion and positioned so that the light source emits light laterally relative to the extension portion when in use; and
- rotation restraint means for maintaining the extension portion at a desired rotational angle relative to the handle portion during use.
24. A dental curing light as defined in claim 23, wherein the second longitudinal axis is laterally offset by a predetermined angle relative to the first longitudinal axis.
25. A dental curing light as defined in claim 24, wherein the predetermined angle approximates the contra angle of a standard dental hand piece when the extension portion is selectively rotated into at least one angle of rotation relative to the handle portion.
26. A dental curing light as defined in claim 23, wherein the second longitudinal axis is substantially parallel to the first longitudinal axis.
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Type: Grant
Filed: Aug 20, 2003
Date of Patent: Mar 20, 2007
Patent Publication Number: 20050042570
Assignee: Ultradent Products, Inc. (South Jordan, UT)
Inventors: Dan E. Fischer (Sandy, UT), Bruce S. McLean (Sandy, UT)
Primary Examiner: Cary E. O'Connor
Attorney: Workman Nydegger
Application Number: 10/644,707
International Classification: A61C 3/00 (20060101);